Struct.exists(String) Method
Definition
Important
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Determines whether a particular item exists in a struct.
public:
virtual bool exists(System::String ^ _fieldName);public virtual bool exists (string _fieldName);abstract member exists : string -> bool
override this.exists : string -> boolPublic Overridable Function exists (_fieldName As String) As BooleanParameters
- _fieldName
- String
The name of the item to check for.
Returns
true if the item exists in the struct; otherwise, false.
Remarks
The following example tests whether a particular item exists in a struct, and if not, it adds the item and assigns a value to it using the Struct.add method.
client server static void setProp(
Struct properties,
str name,
anytype value
)
{
if (! properties.exists(name))
{
properties.add(name,nullValue(value));
}
properties.value(name,value);
}